杨凝,樊伟杰,李伟华.二氧化硅-聚苯胺-氧化石墨烯复合纳米材料改性水性涂层的制备及防腐蚀性能研究[J].装备环境工程,2020,17(4):105-113. YANG Ning,FAN Wei-jie,LI Wei-hua.Preparation and Corrosion Resistance of Water-based Coatings Modified by Graphene Oxide-Polyaniline-Silica Nano-composite[J].Equipment Environmental Engineering,2020,17(4):105-113. |
二氧化硅-聚苯胺-氧化石墨烯复合纳米材料改性水性涂层的制备及防腐蚀性能研究 |
Preparation and Corrosion Resistance of Water-based Coatings Modified by Graphene Oxide-Polyaniline-Silica Nano-composite |
投稿时间:2019-10-11 修订日期:2019-11-29 |
DOI:10.7643/issn.1672-9242.2020.04.017 |
中文关键词: 氧化石墨烯 聚苯胺 二氧化硅 水性涂层 改性 阻抗 |
英文关键词:graphene oxide polyaniline silicon dioxide water-based coating modified corrosion resistance |
基金项目:国家自然科学基金项目(51401185);国家杰出青年科学基金(51525903) |
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Author | Institution |
YANG Ning | Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China;University of Chinese Academy of Science, Beijing, 100049, China |
FAN Wei-jie | Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China;University of Chinese Academy of Science, Beijing, 100049, China;Qingdao Campus of Naval Aviation University, Qingdao 266000, China |
LI Wei-hua | Sun Yat-sen University, Zhuhai 519082, China |
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中文摘要: |
目的 将SiO2-PANI-GO三维复合物添加到水性醇酸涂层中,并对改性涂层防腐蚀性能进行研究。方法 将纤维状的PANI和球状SiO2与片状的GO进行复合,通过扫描电子显微镜(SEM)、傅里叶变换红外光谱(FT-IR)、X射线衍射(XRD)对复合物进行材料表征。将纳米复合物作为填料按照1%的质量比添加到水性涂层中,利用电化学阻抗(EIS)研究涂层改性后的防腐蚀性能。结果SEM图像表明,SiO2-PANI-GO复合物为表面复合了纤维状PANI和球状SiO2的片层状GO。FT-IR及XRD证明了SiO2-PANI-GO复合物的成功制备。EIS结果表明,添加了SiO2-PANI-GO三维复合物改性后,水性醇酸涂层的阻抗提高了2个数量级,其中以SiO2与PANI-GO比例为1:4时效果最好。结论 水性醇酸涂层中添加SiO2-PANI-GO/WAV三维复合物,可以增加腐蚀介质侵蚀基底的路径,有效提高涂层的防腐性能。 |
英文摘要: |
This work aims to prepare the three-dimensional silica-polyaniline-graphene oxide (SiO2-PANI-GO) composite and add it into water-based alkyd varnish (WAV) to enhance the corrosion protection ability.The SiO2-PANI-GO composite were prepared by a facile chemical method. The composites were characterized by SEM, FT-IR and XRD. The nano composite was added to the water-based coating as filler at the mass ratio of 1%. The anticorrosion performance of WAV and composite introduced WAV were demonstrated by electrochemical impedance spectroscopy measurements (EIS) and polarization tests. The SEM image showed that the silica-polyaniline-graphene oxide composite was a lamellar graphene oxide whose surface was combined with fibrous polyaniline and spherical silica; the results of FT-IR and XRD showed that the silica-polyaniline-graphene oxide was successfully synthesized; the EIS results showed that the anti-corrosion resistance of the modified coating was increased by 2 orders. The best effect was obtained when the ratio of SiO2 to PANI-GO was 1:4. By adding silica-polyaniline-graphene oxide three-dimensional composite into water-based alkyd varnish, the distance and path of the corrosive medium to metal substrate can be increased, so the anti-corrosion resistance of the coating can be effectively improved. |
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